Mill for rolling side-webbed girder-rails



(No Model.)

B. SIMPSON.

MILL FOR ROLLING SIDE WEBBBD GIRDER RAILS. No. 394,023.

Patented Dec. 4, 1888.

W'ziizew w:

UNTTED STATES PATENT OFFICE.

EIHVARI) SIMPSON, Oh .I( )llNS'lO\Y.\ PENNSYLI'ANIA, ASSIGXOR TO THE JOHNSON STEEL STREET RAII. COMPANY, (ll? KENTUCKY.

MlLL FOR ROLLING SlDE-WEBBED GlRDER-RAILS.

SPECIFICATION forming part: of Letters Patent; No. 394,023, dated December 4, 1888.

Application filed February 15, 1888. $erial No. 264,138- (No model.)

To all 2071 out it may concern:

3e it known that I, EDWARD SIMPsON, ot' Johnstown, in the county of (ambria and State of Pennsylvania, have invented new and useful Rolls for Rolling Side-\Vebbed shows in front elevation a pair of rolls, the

letter A indicating the top roll and l the bottom roll. Said rolls are provided with six passes, numbered accordingly I 3 i 5 U.

The bloom havingbeeu first redtteed to any shape of cross-section suitable to enter pass No. l, is then entered therein, and, having been rolled through the same, is next successively rolled in each of the following passes, being finished in the last or final pass, No. (3. It will be observed that in passes Nos. 1, 2,

and 3 the formation of the head portion G is passes, as shown, from figures] to (t, inclusive,

commenced by oblique action on one of the angular sides oi. the respective passes, whereas in passes Nos. 4, 5, and ti the formation of this head portion is finished by vertical action. In passes Nos. 2 and :3 the formation of the side lug, II, is commenced by similar roll action to that which forms the head portion, and, as also in the case of the head, the formation of this lug portion ll in passes Nos. 4, 5, and t) is finished and perl'eetwl by direct vertical action of the rolls.

The rolls may be mounted in any suitable housings of well-known construction.

I do not limit myself to the exact number or disposition of passes shown, as the number of passes and their distribution into roughing or reducing and finishing passes is to a certain extent: arbitrary, being infiuenced by the length and diameterof the rolls, a light train of rolls calling for more passes with lighter dra'l't than a heavy roll-train. It is also evident that the rolls can, if desired, be made three-high instead of two-high, as shown.

I do not limit myself to the exact number of oblique or vertical passes. The oblique passes give the most rapid reduction, the vertical passes the most. ].)erlect finish. While the relative numbers of the oblique and vertical passes shown are considered the best, it would be possible to change the relat ivc numbers of each to secure the desired result.

Having thus fully described my said improvement as of my invention, I claim The combination olf rapidly-reducing oblique passes with the truing'aip right-angled substantially as set forth.

El) WARD SIMPSON. Witnesses:

1 .1. hinvrL-m, A. MONTGOMERY. 

